124 58TH PL SW 2016-01-01 MF Import

�cn � h.li�in:•t•1:� April 19, 1993 rcoreclnd al. Geoem imm�u mal aed Geologic Sen ice. Select Humes 237 Elm Street Everett, 1V,t-shington 98203 Attention: Mr. Rarn'y Clark Builc ng Setback Conditions Hanabrook Development Divisions III and IV Everett, Washington File No. 2670{015-R06 The Purpose Gf this letter is to outline repo••-ed building setback conditions for location of homes at the tops of slopes on Divisions III and IV of the Hanabrook D!ve' Pmeu, in Everett, Washington. This has been discussed with Mr. Randy Clark of Select Homes, Mr. Pat McCourt of Universal Brokerage Corporation, and Mr. Michael Crowson of W&H Pacific. We have observed 1`10 signs of instability on native slopes in Divisions III and IV. Fill slopes on Divisions III and IV were constructed with structural fill consisting of on-site granular soils under full-time monitoring of a qualified individu.tl from our firm. The str,ctural fill is keyed into existing frm native scils and fill placed to achieve the final slope grades has been properly benched into existing native materials and compacted to 95 percent of MOD (Ma),imum dry density)according to the specifications of the ASTM D-1557 test procedure. In a:4:;tion, the lots are graded to slope away from the tops of slopes and all slopes have been covered with jute matting and hydroseeded for erosion protection. In our opinion, where slopes have been Placed, compacted, graded, :.md ,evetated as described above, the minimum building setback distance can be reduced to 10 tett. the setback distance is the horizontal distance me,.sured from the front face of the footir, to the face of the slope. It should be understood that if the setback distance is reduced to 10 feet, the risks of losing access, reducing the design life of the foundations and hav!ng 10Po movement impact the house foundations are increased.